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Finding the Fourth Proportional to 8,854.90, 13,279.25 and 2,613.25

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Solution

The fourth proportional to 8,854.90, 13,279.25 and 2,613.25 is: 3,918.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,854.90 : 13,279.25 = 2,613.25 : x
  2. Step 2: Convert to fraction form
    8,854.90/13,279.25 = 2,613.25/x
  3. Step 3: Cross multiply
    8,854.90x = 13,279.25 × 2,613.25
  4. Step 4: Simplify right side
    8,854.90x = 34,702,000.06
  5. Step 5: Solve for x
    x = 34,702,000.06/8,854.90
  6. Step 6: Final answer
    x = 3,918.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.